Evidence of ferroelectric behaviour in CaCu3Ti4O12 thin films deposited by RF-sputtering

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorFoschini, Cesar R. [UNESP]-
Autor(es): dc.creatorHangai, Bruno [UNESP]-
Autor(es): dc.creatorOrtega, Pedro Paulo [UNESP]-
Autor(es): dc.creatorLongo, Elson [UNESP]-
Autor(es): dc.creatorCilense, Mário [UNESP]-
Autor(es): dc.creatorSimões, Alexandre Z. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:33:01Z-
Data de disponibilização: dc.date.available2022-02-22T00:33:01Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2019-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.2298/PAC1903219F-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/201243-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/201243-
Descrição: dc.descriptionThe origin of abnormal ferroelectric and unusual piezoelectricity in the polycrystalline CaCu3Ti4O12 (CCTO) thin films deposited by RF-sputtering on Pt/Ti/SiO2/Si (100) substrates was explored. The CCTO thin films, deposited at room temperature followed by annealing at 600 °C for 2 h in a conventional furnace, have a cubic structure with lattice parameter a = 7.379 ± 0.001 Å and without any secondary phases. No polarization loss up to 1010 switching cycles, with a switched polarization ∆P of 30 µC/cm2 measured at 400 kV/cm was evidenced. The piezoelectric coefficient investigated by piezoresponse force microscopy (PFM) was approximately 9.0 pm/V. This may be the very first example of exploring the origin of ferroelectric behaviour for a material that possesses space charge polarization with highly resistive grain boundaries in the polycrystalline state.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Engineering of Bauru, Av. Eng. Luiz Edmundo C. Coube 14-01-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Engineering of Guaratinguetá, Av. Dr. Ariberto Pereira da Cunha 333-
Descrição: dc.descriptionSão Paulo State University (UNESP) – Chemistry Institute, R. Prof. Francisco Degni 55-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Engineering of Bauru, Av. Eng. Luiz Edmundo C. Coube 14-01-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Engineering of Guaratinguetá, Av. Dr. Ariberto Pereira da Cunha 333-
Descrição: dc.descriptionSão Paulo State University (UNESP) – Chemistry Institute, R. Prof. Francisco Degni 55-
Descrição: dc.descriptionFAPESP: 2013/07296-2-
Formato: dc.format219-228-
Idioma: dc.languageen-
Relação: dc.relationProcessing and Application of Ceramics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCalcium copper titanate-
Palavras-chave: dc.subjectCCTO-
Palavras-chave: dc.subjectFerroelectricity-
Palavras-chave: dc.subjectRF-sputtering-
Palavras-chave: dc.subjectThin films-
Título: dc.titleEvidence of ferroelectric behaviour in CaCu3Ti4O12 thin films deposited by RF-sputtering-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.